Couple of problems with newly upgraded PC

[yoToco94]

Recently Ive been getting some annoying and serious problems with my newly upgraded PC.

I made some hardware changes and right now my PC specs are:

Intel i7 4790k at 4.0GHZ
Asus Maximus Formula VII
SLI GTX 970 SCC and SC
2400MHZ 16GB G Skill
Coolermaster Silent Pro 1000W
Corsair H100i
THermaltake LV10 GT

3 LED Corsair fans 120mm
1 LED Corsair fan 140mm
1 Corsair Fan 120 NO LED

Samsung EVO Pro 250 SSD (To boot Windows)
1TB HDD 7200RPM
500GB HDD 7200RPM

So to start I made a fresh install of Windows since it was newly hardware I got. After this, I got last night a black screen on my surround setup all monitors went to sleep but PC was on with all fans running. Mouse didn't respond or anything. Had to hard restart PC.

After that it hasent happen again. Today I tried to do a Bitdefender scan and it got stuck at 44% scannning the same things over and over again. I checked my HDDs status and the 500GB had a Caution sign, relocated the sectors or whatever and still got stuck on the scan. So I took it out and the scan ran completly and nothing bad was found. During and after the scan, Windows got really laggy but I didnt find any overheat situations. Manage to fix it by taking out the Aero effect.

But I dont get why this is happening on the lag, Im going to replace the HDD as this is clearly a problem with the scan and sometimes I get problems uninstalling and downloading programs from others HDD but those dont have any problems.

Please help on all this, explaining what I can do or something.

Thanks!

 

[Helious]

HDD is dying. Replace asap.

 

[yoToco94]

Yeah i know. I took out the HDD but still im getting lag in Windows. I desconnected that HdD completely. Its not normal to have to take out the Aero effect everytime because Ive SLI GTX 970 and I never got this problem with my SLI GTX 670 SC before.

 

[Helious]

Sorry, I misread what you wrote. Yeah that is odd. I'm unsure how to proceed.

Is Write-Caching disabled on your OS drive or something in Device Manager? (Go to Device Manager, Disk Drives, double click on your OS drive and then check the Policies tab and confirm if Write Caching is enabled.

Outside of that im unsure.

is AHCI enabled in the BIOS?

 

[yoToco94]

I will try that when I get home!

What is AHCI? And in what part of the BIOS is it?

 

[yoToco94]

Just to let this thread know, I checked on Helious suggestion and already had those settings on. I rolled back to Nvidia's 344.65 drivers and no issues have occurred. I will edit this post if I dont get any problems in the next 24 hours for future searches on this type of issues.


EDIT: Still same issue even with older drivers. Yet I realize problem goes away when using span display with Surround. Strange. Any suggestions?